SSL/TLS EXPORT_DHE <= 512-bit Export Cipher Suites Supported (Logjam)

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote host supports a set of weak ciphers.

Description :

The remote host supports EXPORT_DHE cipher suites with keys less than
or equal to 512 bits. Through cryptanalysis, a third party can find
the shared secret in a short amount of time.

A man-in-the middle attacker may be able to downgrade the session to
use EXPORT_DHE cipher suites. Thus, it is recommended to remove
support for weak cipher suites.

See also :

https://weakdh.org/

Solution :

Reconfigure the service to remove support for EXPORT_DHE cipher
suites.

Risk factor :

Low / CVSS Base Score : 2.6
(CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N)
CVSS Temporal Score : 2.2
(CVSS2#E:F/RL:TF/RC:ND)
Public Exploit Available : true

Family: Misc.

Nessus Plugin ID: 83738 ()

Bugtraq ID: 74733

CVE ID: CVE-2015-4000

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